Bahrain, officially the Kingdom of Bahrain, is a country in the Persian Gulf. The island nation comprises a small archipelago made up of 70 natural islands and an additional 33 artificial islands, centered around Bahrain Island which makes up around 83 percent of the country's landmass. The country is situated between the Qatari peninsula and the north eastern coast of Saudi Arabia to which it is connected by the 25-kilometre King Fahd Causeway. According to the 2020 census, Bahrain's population numbers 1,501,635 people, of which 712,362 are Bahraini nationals. At 780 square kilometres in size, it is the third-smallest nation in Asia after the Maldives and Singapore. The capital and largest city is Manama.
Bahrain is the site of the ancient Dilmun civilization. It has been famed since antiquity for its pearl fisheries, which were considered the best in the world into the 19th century. Bahrain was one of the earliest areas to convert to Islam, during the lifetime of the Prophet Muhammad in 628 CE. Following a period of Arab rule, Bahrain was ruled by the Portuguese Empire from 1521 until 1602, following the conquest by Shah Abbas I of the Safavid dynasty under the Persian Empire.